From the comprehensive building to the bridge, there is a path (there is a printing shop opposite to Jiaosi, and there is a red building next to it, which is the College of Continuing Education). It's faster and easier to find it from the main entrance of Xida University, but it's really impossible. Ask people when you get to the West University. Most people understand.
Do you know the comprehensive building? It is the tallest and largest building that you can see at a glance from the main entrance. This complex building has two sides. You go in through the main entrance, climb the stairs of the complex building to the other side, and then walk in the direction of the bridge.